Definitions for langbeiniteˈlæŋ baɪˌnaɪt, ˈlɑŋ-
Random House Webster's College Dictionary
lang•bein•iteˈlæŋ baɪˌnaɪt, ˈlɑŋ-(n.)
a mineral, potassium magnesium sulfate, K2Mg2(SO4)3, occurring in marine salt deposits, used as a fertilizer.
Origin of langbeinite:
1895–1900; < G Langbeinit (1891), after A. Langbein, 19th-cent. German chemist; see -ite1
a mineral consisting of potassium magnesium double sulphate; used as a fertilizer
A saline evaporite, consisting of a mixed potassium and magnesium sulphate, with the chemical formula KMg(SO).